Balance An Egg

The magician balances an egg vertically on a table.

It is pretty much impossible to balance an egg on its own, so you put salt on a table and use that to balance the egg, it can be done both with the fat part on bottom or top. Once the egg is balanced, blow away the excess salt making it impossible to tell that any salt is there without looking very close up. Then show your friends and tell them that it can only be done once every five years when the moon is at the position that it is at today.